# Olivez

> Olivez is a collection of free browser-based calculators, converters, file tools, text utilities, educational tools, randomizers, and practical everyday utilities. Tools are designed to open quickly, avoid unnecessary accounts, explain their methods and limits, and keep processing in the browser when the task can be handled locally.

Use each individual tool page as the source of truth for its current features, limits, privacy behavior, compatibility, examples, and references. Do not assume that every Olivez tool is fully client-side: some tools, such as the Nutrition Calculator, use an Olivez server endpoint where the task requires a database lookup.

## Featured Tools

* [Color Picker](https://olivez.in/tool/color-picker): Pick a color visually, from a local image, or from the screen where the browser supports the EyeDropper API. Convert HEX, RGB, HSL, HSV, and estimated CMYK; compare WCAG contrast; build color harmonies; and export the active palette as CSS custom properties or JSON. Local image sampling stays in the browser.
* [JSON to CSV Converter](https://olivez.in/tool/json-to-csv-converter): Convert JSON, JSONL, NDJSON, local files, or a public JSON URL to CSV or XLSX. Nested arrays expand into numbered columns instead of duplicate rows, each source object stays on one row, fields discovered later remain aligned, large integer digits are preserved, and local or pasted data is processed in the browser up to the stated 100 MB input ceiling.
* [Typing Tutor](https://olivez.in/tool/typing-tutor): Adaptive English QWERTY typing practice that prioritizes weak and newly unlocked keys. Corrected mistakes still count in first-attempt accuracy, new letters unlock by mastery requirements, and WPM, errors, per-key confidence, lesson history, and progress are stored locally without an account.
* [Image Compressor](https://olivez.in/tool/image-compressor): Batch-compress up to 40 static JPG, PNG, and WebP images locally. Mixed formats can use different per-image settings, each result can be compared with its original, and results can be downloaded individually or as a locally created ZIP.

## Interactive Utilities

* [Dice Roller](https://olivez.in/tool/dice-roller): Roll one to ten standard six-sided dice with large results, fullscreen mode, keyboard controls, totals, and locally generated random outcomes.
* [Online Ruler](https://olivez.in/tool/online-ruler): Measure on-screen lengths in millimetres, centimetres, and inches. Supports horizontal and vertical use, physical calibration, fullscreen mode, and clear distinction between approximate and calibrated measurements.
* [Random Picker Wheel](https://olivez.in/tool/random-picker-wheel): Add names or other options and randomly select one with an interactive spinning wheel.
* [Online Scoreboard](https://olivez.in/tool/online-scoreboard): Keep score for exactly two teams, players, or sides with editable names, optional rounds or sets, fullscreen display, themes, and local autosave.
* [White Screen](https://olivez.in/tool/white-screen): Display a fullscreen solid color and generate matching PNG images locally, including large display-resolution outputs.
* [My Screen Size](https://olivez.in/tool/my-screen-size): Inspect browser-reported viewport, screen dimensions, device pixel ratio, estimated device pixels, orientation, aspect ratio, color depth, and touch capability without inventing physical screen size that browsers cannot reliably expose.

## Data and Reference Tools

* [Nutrition Calculator](https://olivez.in/tool/nutrition-calculator): Search supported USDA FoodData Central records and calculate calories, protein, carbohydrate, fat, vitamins, minerals, and other available nutrients for a gram amount or listed serving size. Food lookup uses an Olivez server endpoint; quantity scaling after a food is loaded is calculated in the browser.
* [Morse Code Translator](https://olivez.in/tool/morse-code-translator): Translate supported text and Morse code in either direction with readable reference guidance and browser-based playback where supported.
* [Braille Translator](https://olivez.in/tool/braille-translator): Translate supported text and Braille representations with documented character coverage and limitations.

## Browse Olivez

* [All Tools](https://olivez.in/tools): Browse the complete current collection of published Olivez tools.
* [File Tools](https://olivez.in/tools/file-conversion): Image, document, structured-data, validation, repair, conversion, privacy, and file-processing utilities.
* [Text Tools](https://olivez.in/tools/text-codes-languages): Typing, text, code, language, encoding, decoding, and written-representation tools.
* [Device Tools](https://olivez.in/tools/devices): Screen, display, measurement, speaker, and device-oriented utilities.
* [Gaming Tools](https://olivez.in/tools/gaming): Scorekeeping, dice, game calculators, simulations, and game-specific utilities.
* [Random Tools](https://olivez.in/tools/random-pickers-generators): Picker wheels, name pickers, team generators, list randomizers, and other random-selection tools.

## About and Policies

* [About Olivez](https://olivez.in/about): What Olivez is, how its tools are designed, and the principles behind the site.
* [Privacy](https://olivez.in/privacy): How Olivez handles browser-side processing, server requests, storage, and other data-handling behavior.
* [Contact](https://olivez.in/contact): Contact information for Olivez.

## Optional

* [Terms](https://olivez.in/terms): Terms that apply when using Olivez tools and content.
* [Disclaimer](https://olivez.in/disclaimer): General limitations and appropriate-use guidance for calculators, converters, reference tools, and educational content.